ML20246D668

1988 Annual Environ Operating Rept (Non-Radiological)

ML20246D668
Person / Time
Site:	Limerick
Issue date:	12/31/1988
From:	Leitch G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8905110001
Download: ML20246D668 (9)

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3893126380 LIMERICK GENERATING STATION UNITS I AND 2 1988 ANNUAL ENVIRONMENTAL' OPERATING REPORT (NON-RADIOLOGICAL)

JANUARY 1988 - DECEMBER 1988 FACILITY OPERATING LICENSE NO. NPF-39 DOCKET NOS. 50-352, 50-353 PHILADELPHIA ELECTRIC COMPANY l

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'l . 0 Introduction This report describes the implementation of the Environmental Protection Plan (EPP) from January 1, 1988, through December 31, 1988.

Provided herein are summaries and results of the environmental protection activities required by Subsection 4.2 of the EPP.

2.0 Environmental Protection Activities 2.1 Aquatic Monitoring The Environmental Protection Plan states that the NRC will rely on decisions made by the Commonwealth of Pennsylvania, under the authority of the Clean Water Act, for any requirements for aquatic monitoring.

Industrial Waste NPDES Permit PA 0051926 dated September 19, 1984, provides the mechanism for protecting water quality and indirectly aquatic biota.

In accordance with the requirements of Section 3 of the Permit, monitoring results were summarized for each month and reported on Discharge Monitoring Reports (DMR) which were submitted to the DER and EPA.

A summary of the results as reported in the monthly DMR's is on Table 1. In addition, studies of water quality, benthic macroinvertebrates, fishes collected by seining and electrofishing, fish impingement on the Schuylkill River water intake screens, and quarterly examination of river water temperature upstream and downstream of the LGS discharge, were performed in support of LGS in 1988. Additionally, dissolved oxygen was monitored continuously in support of Revisions 5 and 6 of the Delaware River Basin Commission (DRBC) Docket Number D-69-210 CP (Final) authorizing Schuylkill River water withdrawals.

Dissolved oxygen monitoring results were reported several times each day in 1988 to the LGS operating staff and were used to coordinate releases of make-up water from Still Creek Reservoir in accordance with the DRBC docket revisions. Periodic inspections of Still Creek Reservoir and receiving streams revealed no sign of increased erosion, sedimentation, or other environmental damage.

Preliminary examination of water quality and benthic macroinvertebrate data and field observations indicate that conditions were similar to those reported in 1987

and detrimental environmental impacts attributable to LGS operation did not occur. Problems with sedimentation on buried cylinder samplers (BCS) used '

to collect benthic macroinvertebrates were identified in the 1987 studies and were again evident in 1988.

Sedimentation is not directly related to LGS operation.

Construction activities for LGS Unit 2 contribute to the Schuylkill River's sediment load via the Possum Hollow Run watershed which drains the LGS plant site.

However, this fraction is small compared to the sediment load contributed by the entire watershed upstream of LGS.

Data from fisheries studies conducted in 1988 were analyzed and compared to prior years. No evidence exists to suggest damage to Schuylkill River fish communities from LGS operation. Only 141 fish were found for the entire year during impingement monitoring. The fish community near LGS displayed changes in relative abundance that were within the range of natural variability determined prior to LGS start-up. Spotfin shiner and swallowtail shiner were the most abundant species collected by seine, while redbreast sunfish and rock bass were most abundant in electrofishing samples. Recent year-to year trends in species' abundances reflect natural annual variation in recruitment and survival attributable to variable flow and other natural phenomena.

Thermal effects of LGS discharge were slight and barely detectable at any time of year. Since the discharge is diffused into a wide riffle area, no distinct thermal plume develops.

2.2 Terrestrial Monitoring No terrestrial monitoring is required.

2.3 Maintenance of Transmission Line Corridors Transmission line maintenance records concerning herbicide use are being maintained by the Company's Electric Transmission and Distribution Department. As required by the EPP, these records can be made available to the NRC upon request.

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- ,' _4_ i 2.4' Noise Monitoring ,

1 No noise surveys were required in 1988. The post operational survey for LGS Unit I was completed in 1986. Since construction of LGS Unit 2, Point Pleasant, and Bradshaw Reservoir was not completed in 1988, no sound surveys were made.

2.5 Environmental Protection Plan There were five Environmental Protection Plan (EPP) noncompliance identified by the 1988 EPP Audit by the Nuclear Quality Assurance Department.

a. Corrective Action Request, LA88510-01, identified a failure to properly control Testing and Laboratories chemical analysis procedures. A system of review and numbering of all procedures has been established and reviewed with the staff,

b. Corrective Action Request, LA88510-02, identified a failure of effluett temperature readings reported on monthly DMRs submitted from 1/88 to 9/88 to permit verification of the requirements of NPDES Permit PA0051926, Amendment No. 2, Part C, Other Requirements A. It was determined that existing plant instrumentation meet the NPDES discharge and monitoring requirements.

c. Corrective Action Request, LA88510-03, identified a failure to summarize and analyze the results of Aquatic Monitoring performed for LGS in 1987 in the 1987 AEOR. The 1988 AEOR includes a summary and analysis of Aquatic Monitoring results.

d. Corrective Action Request, LA88510-04, identified a failure to maintain herbicide use records for Transmission Line 5031. Herbicide use records were retrieved for Transmission line 5031 and, in the future, contractors will be required to submit chemical treatment information on a daily basis.

e. Corrective Action Request, LA88510-05 identified a failure to properly document and comply with reporting requirements for Non-Routine Reports issued in 1987 and 1988. Some reports documenting unusual or important events causally related to plant operation that indicated or could result in significant environmental impact were not submitted to the NRC and/or EPA or were submitted after the t _ _ _ _ _ _ _ _ - _ _ _ _ _ - _ - - _ _ - _ _ _ - - _ _ _ _ _ _ - _ _ _ _ _ _ - _

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s required reporting time limits. Letters not submitted will be reissued to appropriate agencies and procedures were revised to assure proper report distribution and documentation.

2.6 Changes in Station Design on Operation, Test, or Experiments Environmental evaluations were performed for the following changes in the Limerick Generating Station operation. In acccrdance with the requirements of ,

Section 3.1 or the Environmental Protection Plan, each  !

change includes a brief description, analyses, f interpretation, and evaluation,

a. Environmental Evaluation No. 88-1 Environmental Evaluation No. 88-1 assessed the effect of the continuation in 1988 of three temporary changes in plant operation. These involved the withdrawal of water from the l Schuylkill River for consumptive use at LGS. The i changes were:  !

1. substitution of instream monitoring of dissolved oxygen levels in place of the 59 F temperature constraint on withdrawals;

2. consumptive use at LGS when consumptive use at i Titus Generating Station or Cromby Generating Station was curtailed; and f

l l 3. consumptive use at LGS when an equal volume of l

water was released from Borough of Tamaqua Reservoir upstream of LGS.

The instream monitoring of dissolved oxygen levels was evaluated in 1985 and was summarized in the 1985 Annual Environmental Operating Report. The environmental advantages of directly measuring dissolved oxygen continued to be applicable in 1988. Automatic D.O. monitoring and transmitting facilities, which were installed in 1986, continued to be used.

1 i Use of the Titus/Cromby allocations enhanced the I flow in the reach between Titus and Limerick by 3.5 mgd over the amount which would occur if Titus were in operation. On the other hand, the reach downstream of LGS to the Cromby plant was depleted i

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by 1.7 mgd. . Because the quantities involved were a very small fraction of existing' river. flow, the effect on Schuylkill River. water quality was determined.to be negligible. Environmental-monitoring in 1985 through 1988 confirmed the negligible effect on water quality.

The use of. water from the Borough of Tamaqua reservoirs provides increased. flow of high quality

. water in 77 miles of stream. Therefore, no water quality problems were expected in 1988.

These changes were also evaluated for their combined'effect on impingement and entrainmeat.

Since these changes-were made under'the same-docket condition as in.1986, no significant effects were expected. The 1988 monitoring program found no significant effects.

2.7 Non-routine' Reports Submitted Eight non-routine reports were submitted in accordance with EPP Subsection 5.4.2:

A. On December 16, 1987, battery acid spilled via a storm drain through Discharge Point 005. The Pennsylvania DER was informed by letter dated January 8, 1988.

B '. Discharge Point 301 was not sampled and' analyzed in accordance with NPDES Permit.PA 0051926, other Requirement G. The Pennsylvania DER was informed by letter dated April 6, 1988.

C. On March 8, 1988, a sanitary sewer line overflowed. The Pennsylvania DER was informed by letter dated April 18, 1988.

D. It was discovered that the use of Nalco 1372 was not being reported in'the Monthly Discharge Monitoring Report (DMR). The Pennsylvania DER was informed by letter dated May 11, 1988.

E. On May 3, 1988, cable lubricant was discharged through Discharge Point 005. The Pennsylvania DER was informed by letter dated June 22, 1988.

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l F. On June.12, 1988 the Cooling Tower was l' discharging through Discharge Point 005 instead ,

of Discharge Point 401. The Pennsylvania DER 1 was informed by letter dated July 11, 1988. i l

G. On July 18, 1988, cutting oil was spilled via a storm drain through Discharge Point 005. The Pennsylvania DER was informed by letter dated July 27,-1988.

H. An NPDES violation for average monthly total iron concentration at Discharge Point 401 occurred in September.

The Pennsylvania DER.was  !

informed by letter dated October 21, 1988.

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TABLE 1 YEARLY MEAN AND RANGE OR MAXIMUM (AS APPROPRIATE) OF '

PARAMETERS REPORTED IN THE 1988 DISCHARGE MONITORING REPORTS -

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DISCHARGE NUMBER

• 001 201A 401A INLET. TEMP., F range. 36 - 82 NR** NR mean 55 +/- 29*** NR NR DISCHARGE TEMP., F range 44 - 90 NR. NR mean 69 +/- 20 NR NR

.pH, range 7.5 .8.8 NR NR FLOW, MGD maximum 15.7 0.79 3.2 mean 7.5 +/- 1.8 0.18 +/- 0.14 0.24 +/- 0.38 CHLORINE, MG/L <0.1 NR NR TOLYTRI AZOLE , MG/L 0.7 +/- 0.5 NR NR SODIUM SILICATE, MG/L 23.9 +/- 7.9 NR NR POLYACRYLATE, MG/L 4.7 +/- 2.7 NR NR -

NALCO 1372, MG/L maximum 14.0 NR NR range 9.0 +/- 4.9 NR NR TOTAL SUSP. SOLIDS, MG/L maximum NR 51.3 53.2 mean NR 13.6 +/- 10.2, 20.9 +/- 16.7 OIL & GREASE, MG/L maximum NR 13.5 2.4 mean NR 1.8 +/- 2.0 0.9 +/- 0.5 IRON, MG/L maximum NR 10.9 12.1 mean NR 0.5 +/- 0.5 6.5 +/- 7.8

• There were no discharges reported for 1988 from discharge nos.

101A and 301A.

• • NR = not reported.

• • • Reported as mean +/- 2 s.d.

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PHILADELPHIA ELECTRIC COMPANY (IMERICK GENER ATING STATION P. O. BOX A SAN ATOG A. PENNSYLV ANI A 19464 (215) 3271200. EXT. 3000 GR AH AM M. LEITCH V.C E Pl!. 86 DE N, April 28, 1989 l

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License No. NPF-39 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Gentlemen:

In accordance with Section 5.4.1 of the Limerick Generating Station (LGS) Unit i non-radiological Environmental Protection Plan (EPP), this letter submits the 1988 Annual Environmental operating Report . (non-radiological) . This report describes the implementation of the LGS Unit 1 EPP for 1988.

Ver u yours, 1

GML/kk Attachment cc: W. T. Russell, Administrator, Region I, USNRC T. J. Kenney, Senior Resident Inspector, LGS bcc: C. A. McNeill, Jr.

E. J. Bradley G. M. Leitch J. M. Madara M. J. McCormick L. B. Pyrih R. W. Dubiel G. A. Hunger /RMK J. R. McFadden Correspondence Control Desk DAC

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